UPDATE 1-Market Chatter-Corporate finance press digest

Dec 4 The following corporate finance-related
stories were reported by media on Tuesday:
* Private equity firm Apax is in talks with Guardian Media
Group Plc about potentially buying the newspaper
group's stake in Trader Media Group, the publisher of
Auto Trader, in a deal that could raise up to 600 million
pounds, the Telegraph reported. ()
* A service unit of Nokia Siemens Networks (NSN)
in Germany faces closure after losing a contract with its
biggest customer, German daily newspaper Sueddeutsche Zeitung
reported.
* Cerberus Capital Management LP is in talks to join Virtu
Financial LLC's bid for U.S. brokerage Knight Capital Group Inc
, the Wall Street Journal reported, citing people
familiar with the discussions.